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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-46216

drm/xe/hdcp: Add NULL check for media_gt in intel_hdcp_gsc_check_status()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/hdcp: Add NULL check for media_gt in intel_hdcp_gsc_check_status() When media GT is disabled via configfs, there is no allocation for media_gt, which is kept as NULL. In such scenario, intel_hdcp_gsc_check_status() results in a kernel pagefault error due to &gt->uc.gsc being evaluated as an invalid memory address. Fix that by introducing a NULL check on media_gt and bailing out early if so. While at it, also drop the NULL check for gsc, since it can't be NULL if media_gt is not NULL. v2: - Get address for gsc only after checking that gt is not NULL. (Shuicheng) - Drop the NULL check for gsc. (Shuicheng) v3: - Add "Fixes" and "Cc: <stable...>" tags. (Matt) (cherry picked from commit bfaf87e84ca3ca3f6e275f9ae56da47a8b55ffd1)

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 to < cad210d2851f3a7d9573bdfc02aa61d9287bbe8caffected
  • 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 to < 814326e86e929b865020ff44f4576dbdfe3f7ff3affected
  • 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 to < d8ab4b47edf4578dbfbe5e95817107a514fa34ccaffected
  • 4af50beb4e0f9e6aed9cd53436c099f1dba826f1 to < 60a1e131a811b68703da58fd805ab359b704ab03affected

Linux Linux

Default version status: affected

  • 6.10affected
  • 0 to < 6.10unaffected
  • 6.12.92 to ≤ 6.12.*unaffected
  • 6.18.34 to ≤ 6.18.*unaffected
  • 7.0.9 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References